Transient response analytic calculation method for high-voltage direct current power transmission system
A power transmission system, high-voltage direct current technology, applied in the direction of calculation, electrical digital data processing, special data processing applications, etc., can solve the problems of truncation error, limited application, large calculation amount, etc., to achieve long time consumption and no truncation error , the effect of high computational efficiency
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[0042] Such as figure 1 As shown, the structure diagram of a unipolar 12-pulse HVDC transmission system is given. Among them, the rectifier side and the inverter side of the DC line are respectively equipped with single-tuned filters, and the model of the DC line uses a T-type circuit for equivalence.
[0043] Figure 2-1 to Figure 2-3 It is the circuit structure diagram of the converter transformer connected to the 12-pulse rectifier and the inverter under different conduction conditions in embodiment 1, where, diagram 2-1 In the case of Y / Y transformer lower half bridge commutation, Y / △ transformer lower half bridge commutation; Figure 2-2 It is the situation that the Y / △transformer is turned on after the commutation of the upper half bridge of the Y / Y transformer fails. Figure 2-3 This is the case where the lower half bridge of the Y / Y transformer commutates, and the upper half bridge of the Y / △ transformer commutates again after the commutation fails.
[0044] Given rectifie...
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